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Re: SBC vs BBC motor mounts
Nothing. The rubber mounts are stiffer but small block will work. I've swapped many small to big and didn't change a thing.....the difference is between car and truck, the clam shells are different.
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2000 GMC CCSB 454/4L80 6” lift SAS
1999 Chevy CCSB 454/NV4500 6” lift
1999 GMC Yukon 350/4L60 4" SAS
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